Pressure-induced phase transition and octahedral tilt system change of Ba2BiSbO6

Michael W. Lufaso, René B. MacQuart, Yongjae Lee, Thomas Vogt, Hans Conrad Zur Loye

Research output: Contribution to journalArticle

19 Citations (Scopus)

Abstract

High-resolution X-ray synchrotron powder diffraction studies under high-pressure conditions are reported for the ordered double perovskite Ba 2BiSbO6. Near 4 GPa, the oxide undergoes a pressure-induced phase transition. The symmetry of the material changes during the phase transition from space group R3̄ to space group I2/m, which is consistent with a change in the octahedral tilting distortion from an a -a-a- type to a0b-b - type using the Glazer notation. A fit of the volume-pressure data using the Birch-Murnagaham equation of state yielded a bulk modulus of 144(8) GPa for the rhombohedral phase.

Original languageEnglish
Pages (from-to)917-922
Number of pages6
JournalJournal of Solid State Chemistry
Volume179
Issue number3
DOIs
Publication statusPublished - 2006 Mar 1

Fingerprint

Phase transitions
bulk modulus
synchrotrons
coding
equations of state
Synchrotrons
Equations of state
Perovskite
Oxides
oxides
high resolution
symmetry
Elastic moduli
diffraction
X rays
x rays
Powder Diffraction
perovskite

All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry
  • Physical and Theoretical Chemistry
  • Materials Chemistry

Cite this

Lufaso, Michael W. ; MacQuart, René B. ; Lee, Yongjae ; Vogt, Thomas ; Zur Loye, Hans Conrad. / Pressure-induced phase transition and octahedral tilt system change of Ba2BiSbO6 . In: Journal of Solid State Chemistry. 2006 ; Vol. 179, No. 3. pp. 917-922.
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Pressure-induced phase transition and octahedral tilt system change of Ba2BiSbO6 . / Lufaso, Michael W.; MacQuart, René B.; Lee, Yongjae; Vogt, Thomas; Zur Loye, Hans Conrad.

In: Journal of Solid State Chemistry, Vol. 179, No. 3, 01.03.2006, p. 917-922.

Research output: Contribution to journalArticle

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AU - MacQuart, René B.

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AU - Zur Loye, Hans Conrad

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AB - High-resolution X-ray synchrotron powder diffraction studies under high-pressure conditions are reported for the ordered double perovskite Ba 2BiSbO6. Near 4 GPa, the oxide undergoes a pressure-induced phase transition. The symmetry of the material changes during the phase transition from space group R3̄ to space group I2/m, which is consistent with a change in the octahedral tilting distortion from an a -a-a- type to a0b-b - type using the Glazer notation. A fit of the volume-pressure data using the Birch-Murnagaham equation of state yielded a bulk modulus of 144(8) GPa for the rhombohedral phase.

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